Alright, let's solve this math problem step by step. First, we have the number 161. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 198. So, we're going to take the number 161 and add it to itself 198 times.
Step 1: 0 + 161 = 161
Step 2: 161 + 161 = 322
Step 3: 322 + 161 = 483
Step 4: 483 + 161 = 644
Step 5: 644 + 161 = 805
Step 6: 805 + 161 = 966
Step 7: 966 + 161 = 1127
Step 8: 1127 + 161 = 1288
Step 9: 1288 + 161 = 1449
Step 10: 1449 + 161 = 1610
Step 11: 1610 + 161 = 1771
Step 12: 1771 + 161 = 1932
Step 13: 1932 + 161 = 2093
Step 14: 2093 + 161 = 2254
Step 15: 2254 + 161 = 2415
Step 16: 2415 + 161 = 2576
Step 17: 2576 + 161 = 2737
Step 18: 2737 + 161 = 2898
Step 19: 2898 + 161 = 3059
Step 20: 3059 + 161 = 3220
Step 21: 3220 + 161 = 3381
Step 22: 3381 + 161 = 3542
Step 23: 3542 + 161 = 3703
Step 24: 3703 + 161 = 3864
Step 25: 3864 + 161 = 4025
Step 26: 4025 + 161 = 4186
Step 27: 4186 + 161 = 4347
Step 28: 4347 + 161 = 4508
Step 29: 4508 + 161 = 4669
Step 30: 4669 + 161 = 4830
Step 31: 4830 + 161 = 4991
Step 32: 4991 + 161 = 5152
Step 33: 5152 + 161 = 5313
Step 34: 5313 + 161 = 5474
Step 35: 5474 + 161 = 5635
Step 36: 5635 + 161 = 5796
Step 37: 5796 + 161 = 5957
Step 38: 5957 + 161 = 6118
Step 39: 6118 + 161 = 6279
Step 40: 6279 + 161 = 6440
Step 41: 6440 + 161 = 6601
Step 42: 6601 + 161 = 6762
Step 43: 6762 + 161 = 6923
Step 44: 6923 + 161 = 7084
Step 45: 7084 + 161 = 7245
Step 46: 7245 + 161 = 7406
Step 47: 7406 + 161 = 7567
Step 48: 7567 + 161 = 7728
Step 49: 7728 + 161 = 7889
Step 50: 7889 + 161 = 8050
Step 51: 8050 + 161 = 8211
Step 52: 8211 + 161 = 8372
Step 53: 8372 + 161 = 8533
Step 54: 8533 + 161 = 8694
Step 55: 8694 + 161 = 8855
Step 56: 8855 + 161 = 9016
Step 57: 9016 + 161 = 9177
Step 58: 9177 + 161 = 9338
Step 59: 9338 + 161 = 9499
Step 60: 9499 + 161 = 9660
Step 61: 9660 + 161 = 9821
Step 62: 9821 + 161 = 9982
Step 63: 9982 + 161 = 10143
Step 64: 10143 + 161 = 10304
Step 65: 10304 + 161 = 10465
Step 66: 10465 + 161 = 10626
Step 67: 10626 + 161 = 10787
Step 68: 10787 + 161 = 10948
Step 69: 10948 + 161 = 11109
Step 70: 11109 + 161 = 11270
Step 71: 11270 + 161 = 11431
Step 72: 11431 + 161 = 11592
Step 73: 11592 + 161 = 11753
Step 74: 11753 + 161 = 11914
Step 75: 11914 + 161 = 12075
Step 76: 12075 + 161 = 12236
Step 77: 12236 + 161 = 12397
Step 78: 12397 + 161 = 12558
Step 79: 12558 + 161 = 12719
Step 80: 12719 + 161 = 12880
Step 81: 12880 + 161 = 13041
Step 82: 13041 + 161 = 13202
Step 83: 13202 + 161 = 13363
Step 84: 13363 + 161 = 13524
Step 85: 13524 + 161 = 13685
Step 86: 13685 + 161 = 13846
Step 87: 13846 + 161 = 14007
Step 88: 14007 + 161 = 14168
Step 89: 14168 + 161 = 14329
Step 90: 14329 + 161 = 14490
Step 91: 14490 + 161 = 14651
Step 92: 14651 + 161 = 14812
Step 93: 14812 + 161 = 14973
Step 94: 14973 + 161 = 15134
Step 95: 15134 + 161 = 15295
Step 96: 15295 + 161 = 15456
Step 97: 15456 + 161 = 15617
Step 98: 15617 + 161 = 15778
Step 99: 15778 + 161 = 15939
Step 100: 15939 + 161 = 16100
Step 101: 16100 + 161 = 16261
Step 102: 16261 + 161 = 16422
Step 103: 16422 + 161 = 16583
Step 104: 16583 + 161 = 16744
Step 105: 16744 + 161 = 16905
Step 106: 16905 + 161 = 17066
Step 107: 17066 + 161 = 17227
Step 108: 17227 + 161 = 17388
Step 109: 17388 + 161 = 17549
Step 110: 17549 + 161 = 17710
Step 111: 17710 + 161 = 17871
Step 112: 17871 + 161 = 18032
Step 113: 18032 + 161 = 18193
Step 114: 18193 + 161 = 18354
Step 115: 18354 + 161 = 18515
Step 116: 18515 + 161 = 18676
Step 117: 18676 + 161 = 18837
Step 118: 18837 + 161 = 18998
Step 119: 18998 + 161 = 19159
Step 120: 19159 + 161 = 19320
Step 121: 19320 + 161 = 19481
Step 122: 19481 + 161 = 19642
Step 123: 19642 + 161 = 19803
Step 124: 19803 + 161 = 19964
Step 125: 19964 + 161 = 20125
Step 126: 20125 + 161 = 20286
Step 127: 20286 + 161 = 20447
Step 128: 20447 + 161 = 20608
Step 129: 20608 + 161 = 20769
Step 130: 20769 + 161 = 20930
Step 131: 20930 + 161 = 21091
Step 132: 21091 + 161 = 21252
Step 133: 21252 + 161 = 21413
Step 134: 21413 + 161 = 21574
Step 135: 21574 + 161 = 21735
Step 136: 21735 + 161 = 21896
Step 137: 21896 + 161 = 22057
Step 138: 22057 + 161 = 22218
Step 139: 22218 + 161 = 22379
Step 140: 22379 + 161 = 22540
Step 141: 22540 + 161 = 22701
Step 142: 22701 + 161 = 22862
Step 143: 22862 + 161 = 23023
Step 144: 23023 + 161 = 23184
Step 145: 23184 + 161 = 23345
Step 146: 23345 + 161 = 23506
Step 147: 23506 + 161 = 23667
Step 148: 23667 + 161 = 23828
Step 149: 23828 + 161 = 23989
Step 150: 23989 + 161 = 24150
Step 151: 24150 + 161 = 24311
Step 152: 24311 + 161 = 24472
Step 153: 24472 + 161 = 24633
Step 154: 24633 + 161 = 24794
Step 155: 24794 + 161 = 24955
Step 156: 24955 + 161 = 25116
Step 157: 25116 + 161 = 25277
Step 158: 25277 + 161 = 25438
Step 159: 25438 + 161 = 25599
Step 160: 25599 + 161 = 25760
Step 161: 25760 + 161 = 25921
Step 162: 25921 + 161 = 26082
Step 163: 26082 + 161 = 26243
Step 164: 26243 + 161 = 26404
Step 165: 26404 + 161 = 26565
Step 166: 26565 + 161 = 26726
Step 167: 26726 + 161 = 26887
Step 168: 26887 + 161 = 27048
Step 169: 27048 + 161 = 27209
Step 170: 27209 + 161 = 27370
Step 171: 27370 + 161 = 27531
Step 172: 27531 + 161 = 27692
Step 173: 27692 + 161 = 27853
Step 174: 27853 + 161 = 28014
Step 175: 28014 + 161 = 28175
Step 176: 28175 + 161 = 28336
Step 177: 28336 + 161 = 28497
Step 178: 28497 + 161 = 28658
Step 179: 28658 + 161 = 28819
Step 180: 28819 + 161 = 28980
Step 181: 28980 + 161 = 29141
Step 182: 29141 + 161 = 29302
Step 183: 29302 + 161 = 29463
Step 184: 29463 + 161 = 29624
Step 185: 29624 + 161 = 29785
Step 186: 29785 + 161 = 29946
Step 187: 29946 + 161 = 30107
Step 188: 30107 + 161 = 30268
Step 189: 30268 + 161 = 30429
Step 190: 30429 + 161 = 30590
Step 191: 30590 + 161 = 30751
Step 192: 30751 + 161 = 30912
Step 193: 30912 + 161 = 31073
Step 194: 31073 + 161 = 31234
Step 195: 31234 + 161 = 31395
Step 196: 31395 + 161 = 31556
Step 197: 31556 + 161 = 31717
Step 198: 31717 + 161 = 31878

So, 161*198 = 31878